Drawbar for drags



2 Sheets-Sheet 1 Filed April 20, 1948 l Ill March 29, 1949. c. w, WAIT DRAW BAR FOR DBAGS.

2 Sheets-Sheet 2 Filed April 20, 1948 au gzzar Wm Patented Mar. 29, 1949 UNITED STATES PATENT OFFICE DRAWBAR FOR DRAGS Clarence Walter Wait, New Hartford, Iowa Application April 20,, 1948, Serial No. 22,227

1 Claim. 1

This invention relates to new and useful improvements in draw bars for drags.

The primary object of my invention is to provide a draw bar for drags that is mounted on wheels, as distinguished from the conventional form of drag now commonly in use which slides on the surface of the ground.

With the use of my invention, the load pull is not only considerably less, than with the conventional form of drag, but because of the fact that the draw bar is supported on wheels and works above the surface of the ground, it will not become clogged with dirt, corn stalks, or other foreign matter, or caused to break by coming into contact with stones or other obstructions in its path.

A further object of my invention is to provide a draw bar for drags that may be folded into more compact form for storage or transportation, and rolled on wheels instead of carried into place when not in use.

Still another object of my invention is to provide a draw bar in which the carriages for the supporting wheels are swiveled to the main central frame of the draw bar and susceptible of limited swinging or turning movement in either direction, as required in operation.

Still yet another object of my invention is to provide a draw bar for drags that is relatively simple and economical in construction and highly efficient and durable in use.

With the foregoing and other objects in view that will appear as the nature of my invention is better understood, the same consists in the novel features of construction, combination and arrangement of parts illustrated in the accompanying drawings and more particularly pointed out in the appended claim.

In the accompanying drawings, which are for illustrative purposes only and are therefore not drawn to scale:

Figure 1 is a plan view, illustrating the application of my invention.

Figure 2 is a vertical longitudinal section, taken on line 2-2 of Figure 1.

Figure 3 is an enlarged fragmentary plan view of one of the wheel carriages and companion wheels, and associated parts.

Figure 4 is a vertical transverse section, taken on line 44 of Figure 3.

Figure 5 is a vertical sectional view, taken on line 5--5 of Figure 3, and Figure 6 is a bottom plan view of a wheel carriage and its companion wheel.

Referring to the drawings for a more particular description of my invention, and in which drawings like parts are designated by like reference characters throughout the several views, A designates the drag, which may be of any ordinary or approved type, and B my novel draw bar. The draw bar B is connected at the rear by the hooks and links I and 2, respectively, or other equivalent means, to the drag, and at the front by means of the cables and ring 3 and 4, to the tractor draw bar 5, as indicated by the dotted lines.

My novel draw bar comprises the main central rectangular oblong section 6, consisting of the front and rear parallel angle iron bars 1 and 8, respectively, connected at opposite ends by the cross bars 9, and the triangular shaped end sections Ill and II, hinged at their inner ends, as at 12, to opposite ends of the main central section, and adapted to be folded upwardly and inwardly into the dotted line position indicated in Figure 2 of the drawings, when not in use.

In carrying out my invention, the main central section B of the draw bar, is mounted at opposite ends on the supporting wheels l3, as distinguished from the ordinary or conventional form of draw bar that slides or works on the surface of the ground, and hence, the load pull is not only considerably reduced, but the pull is more even.

Each supporting wheel I3 is journaled to a transverse shaft l4, preferably in the form of a bolt, extending through the parallel depending flanges 15 of the angle iron bars it of the corresponding rectangular oblong carriage C. Each carriage C is pivoted at the center of its front cross bar H, by means of the vertical pin l8, to and beneath the horizontal flange [9 of the front angle bar 1, and is provided at its rear end with the lip or extension 20 that works against the bearing plate 2| on the bottom face of the horizontal flange 2| of the rear angle iron bar 8.

A bar-like guard member 22, of inverted L-shape form, is arranged with its lower end riveted or otherwise secured, as at 23, to the rear cross piece 24 of each wheel carriage C, and with its upper hook-like portion 25 disposed over the vertical flange 25 of the rear angle bar 8. By virtue of this unique construction, the rear ends of the wheel carriages C are allowed to swing either to the right or left, as indicated by the arrows in Figure 3 of the drawings, in making turns or deviating from a straight course, but such swinging movement is limited by the engagement of the depending free ends 21 of the hook-like portions 25 with the vertical flanges 26 of the rear angle bar 8.

From the foregoing description taken in connection with the drawings, it is thought that the construction, operation and advantages of my invention will be readily understood, without requiring a more extended explanation.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

In a draw bar for drags, a main rectangular oblong central section, comprising front and rear angle bars, connected at opposite ends by cross bars, triangular end sections hinged to opposite ends of said main section, rectangular oblong wheel carriages pivoted at their front ends to the" front angle bar of the main section andextending transversely of the latter, supporting wheels journaled to said carriages, and inverted L-shaped guard members secured at their lower ends to the rear ends of the wheel carriageswith their upper hook-like portions extending over the vertical member of the rear angle bar of the main section and serving to limit the swinging movement of the rear ends of said carriages in either direction through contact with said vertical member, and a lip extending from the rear end of each wheel carriage and Working against the bottom of "the bottom of the horizontalmember of the rear angle bar of the main section.

CLARENCE WALTER WAIT.

No references cited. 

